Jar-closure.



PATBNTED OCT. 3, 1905.

S. ADLAM. JAR CLOSURB.' APPLICATION FILED APR.1I.1904,

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`LJITEB STATES SAMUEL ADLAM, OF NEW YORK, N. Y.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Appli/ation filed April 11, 1904. Serial No. 202,483.

Be it known that l, SAMUEL ADLAM, a resident of the city of New York, inthe county and State of New York, have invented certain new and usefulImprovements in Jar-Closures, of which the following is afull, clear,and exact description.

The invention relates to means for sealing jars or bottles and designsto provide a closure which effectively seals the vessel, which can be.readily applied, and which can be produced at a low cost.

lhe invention consists in the several novel features hereinafter setforth, and more particularly defined by claims at the conclusion hereof.

ln the drawings, Figure 1 is a vertical section of a jar embodying theinvention, the cap being removed. Fig. 2 is a similar view, the capbeing' shown in position to close the vessel. Fig. 3 is a detailvertical section of the elastic washer.

A denotes a jar adjacent the mouth or open end ol which a ledge orannular shoulder a is formed, which constitutes a seat for the innerportion of an elastic washer B. For convenience in manufacture and topermit the washer to be readily placed around the mouth portion of thejar a reduced end fr is formed above shoulder a. Below shoulder a thejar is formed with a cylindrical portion a2, which forms an elongatedvertical or longitudinal surface against which the outer portion ofwasher B is pressed. l

The invention designs to employ a fiat axially thin annular washernormally of the form shown in Fig. 3, because elastic washers of thisform can be produced at a much lower cost than other forms of washers-e.g., those which are circular in cross-section. The inner diameter' ofwasher B is less than the diameter of seat c of the jar, so the inneredge of the washer will fit snugly around said seat and hug the jar, asseen in Figs. l and 2. The washer is of sufficient width -incross-section to provide an outer edge 7), which will project outwardlyfrom the jar or seat a, as shown in Fig. 1, and which is adapted to bepressed against peripheral portion @2 of the jar.

A cap C, usually formed of sheet metal, comprises a top c and a verticalflange c, adapted to extend around and engage the flat outer face ofwasher B to firmly press the other face of the washer against peripheralsurface a2 of the jar. A flared edge czof capflange c facilitatespassage of the cap into position around washer B and prevents cutting ofthe washer by the lower edge of said iange. The cap fits rmly around theouter portion of the washer and is thus frictionally held in positionand against longitudinal movement. I

A shoulder e* may be formed on the jar to vertically position the cap.Thus it will be seen that the cap presses the outer portion of thewasher againsta peripheral seat, by which a relatively long sealedsurface or seal is formed. The inner edge portion fitting around seat aholds the washer against axial downward movement with the cap.

The invention possesses several important advantages. By use of a fiataxially thin elastic washer the closure can be produced at a low cost.Furthermore. the fiat thin washer is pressed around a relatively longvertically-extending surface to provide a seal or sealed surface ofconsiderable area and is also held snugly against a shoulder or seat af.

The cap can be readily placed in and held in position by forcing the capdownwardly, can be removed by reverse movement, and is held without useof interlocking means between the jar and the cap. The closure in itsentirety provides an effective seal and can be produced at a very lowcost.

The invention is not to be understood as restricted to the precisedetails shown and described, sinee these can be modified by the skilledmechanic without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination with a jar having acylindrical peripheral surfacenear its upper end, a reduced upper end, and a shoulder between said endand said surface, of a normally flat axially thin elastic washer havingits inner edge portion extending around said shoulder to hold the washeragainst longitudinal movement, and a cap having a flange lying parallelwith said 'peripheral surface and adapted to press the outer portion ofthe washer against the peripheral surface.

2. The combination of a jar having a cylindrical peripheral surface nearits upper end IOO ggg :300,891

and a Seat or Shoulder above said surface, a frictionally engag theother' surface of the normally Hat axially thm elasmc washer havwasherwhereby the cap will be hold in pos1- lng its mner edge portionextondlng @round t1on to close the Jar.

said shoulder, and a cap having a vertical l SAMUEL ADLAM. flange lyingparallel with Said peripheral Sur- Wvtnesses: face and Adapted to pressone surface of the T. C. BOOTH,

Washer agans Said peripheral Surface and l TRUMAN RODGIGRS,

